Apparatus for the manufacture of sheets of glass.



No. 818,209. PATENTED APR. 17, 1906.

F. L. O. WADSWORTH. APPARATUS FOR THE MANUFACTURE OF SHEETS OF GLASS. APPLICATION FILED JULY29,1905.

a SHEETS-SHEET 1.

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F v i 5 WRTIMESSES PATENTED APR. 17, 1906.

F. L. 0. WADSWORTH. APPARATUS FOR THE MANUFACTURE OF SHEETS OF GLASS.

APPLICATION FILED JULY29.1Q05.

3 SHEBTS-SHEET 2 No. 818,209. PATENTED APR. 1'7, 1906.

F. L. 0. WADSWORTH. APPARATUS FOR THE MANUFACTURE OF SHEETS OP GDSS.

APPLIGATIQJII I'LLED JULY 29, 1905.

' 3 sung-SHEET 3 To all whom it may concern:

ITED STATES PATIENT OFFICE.

FRANK L. O. WADSWORTH, OF MORGANTOWN, WEST VIRGINIA, ASSIGXOR TO PRESSED PRISM PLATE GLASS COMPANY, OF NEW YORK. N. 11, A CORPORATION OF' WEST VIRGINIA.

APPARATUS FOR THE MANUFACTURE OF SHEETS OF GLASS.

Be it known that I, FRANK L. O. WADS- i WORTH, of Morgantown, Monongalia county, West Virginia, have invented a new and useful Apparatus for the Manufacture of Sheets of Glass, of which the following is a full, clear, and exact description, reference being had to the-accompanying drawings, forming part of this specification, in which Figure 1 is a vertical section of my machine. Fig. 2 is a plan view. Fig. 3 is a detail of the frame for holding the glass sheet. Fig. 4 is a perspective view of a' modified form of frame which Imay iployin making wire-glass, and i Fig. 5 isa (ii-tail view showing in side elevation and cross-section a modification of the frame.

Attempts have been made heretofore to i roll glass sheets by causing the lastic glass l to pass-between two forming-r01 s in a mani ner similar to the rolling of metal; but, so far as I know, these attempts b others have been unsuccessful, and I beieve that the 'cause of the unsuccess has been the lack of means for holding-and controlling the glass as it emerged from the rolls, and thus pre venting distortion of the sheet.

My invention '15 designed to provide means .by which rolls can be used successfully for I this purpose and glass sheets thus produced very rapidly and with both surfaces of equal quality, nere a roll and a rolling-table i are used, as in the process ordinarily em- I ployed, the side ofthe sheet formed in contact with the table is always of inferior finish, l

My invention consists in apparatus for roll- Q ing a glass sheet between rolling-surfaces, and; as the sheet is delivered from the rolls simultaneously sup orting it in contact with. l the an" on both si es with a support which travels with the glass.

In the drawings, in which I show apparatus suitable for the practice of my invention, 2 2 are the forming-rolls, journaled in suitable supports and driven at equal speed by gearing 3 i 5 6.

For theurpose of supporting the glass as it is rolle I employ a frame 7, (shown in Figs. 3 and 4,)- two' of the marginal. bars of which are hinged, as shown at 8 9 in Fig. 3. The frame is of the size of the sheet desired to he rolled. Theinner edges of its side bars 9 9, are contracted in thickness, as at 10, to l Specification of Letters Patent.

Application filed July 29, 19 05. Serial No. 271,798-

glass 16 is then delivered to the rolls.

Patented April 17, 1906.

I the thickness desired for the sheet; In order that the frame may be passed between the rolls, the bar 8 is of the samethickness as the sheet desired, and the rolls have reduced portions 12 at their ends for the passage of the side bars 9 9'. The bottom bar 13 has its upper surface shaped, as shown in Fig. 1, so as to fit between the rolls on the delivery side of the pass. The frame has a rack 14,which meshes with the driving-pinion 3, so that as the rolls rotate the frame will be moved between them at the same surface speed.

In the practice of'my invention the frame is retracted until the end bar 13 fits within and closes the roll-pass, and a body of plastic As the rolls rotate the glass will be rolled into the form of a sheet, its lower edge being attached to the bar 13, and as the frame travels between the rolls at the same rate as the sheet l the glass will attach itself to the side bars and will be supported thereby, so that when the frame is finally-delivered it will contain a glass sheet attached at its edges and supported and held thereby. Bcinp thus supported by the frame and in contac twith the air on both itsfaces, a sheet of very fine finish is produced. 'hen the frame is delivered from the rolls, it is removed and the finished sheet detached. For this purposel prefer to provide the frame with wheels '17, adapted to rest upon a rail 18 when the frame is at its lowest position. The frame carrying the sheet, can then be moved edgewise opposite to a table 19, which is hinged at 20 and stands in a vertical position. The frame is rested against the table and the table is turned back to a horizontal position, so as to support the glass sheet, whereupon the sides- 8 and 9 of the frame can be opened, as shown in Fig. 3, and the sheet released therefrom. Ifit is desired to impress a figured surface or surfaces or a prism-surface upon the glass.

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